The STNR is a primitive reflex that is characterized by upper extremity (UE) extension and lower extremity (LE) flexion with neck extension, and by UE flexion and LE extension with neck flexion.

Other newborn reflexes include the Moro reflex (aka the startle reflex), the Babinski reflex, the tonic neck reflex, the galant reflex, the stepping reflex, and the palmar grasp reflex.